In 1988, the NEXRAD Agencies established the WSR-88D (Weather Surveillance Radar 88 Doppler) Radar Operations Center (ROC)
in Norman, Oklahoma. The ROC employees come from the National Weather Service, Air Force, Navy, FAA, and support contractors.
The ROC provides centralized meteorological, software, maintenance, and engineering support for all WSR-88D systems. WSR-88D
systems will be modified and enhanced during their operational life to meet changing requirements, technology advances, and
improved understanding of the application of these systems to real-time weather operations. The ROC also operates WSR-88D
test systems for the development of hardware and software upgrades to enhance maintenance, operation, and provide new functionality.